似有似无的尘烬 the impalpable ash
无灰尘的 dust-free
红尘里的无奈 Red Dust's frustration
其他无机粉尘引起的肺尘埃沉着病 Pneumoconiosis due to other inorganic dusts
其他特指的无机粉尘引起的肺尘埃沉着病 Pneumoconiosis due to other specified inorganic dusts
本发明 的颜料制剂不仅无尘的而且还可以干净地处理并且没有问题。
The dye preparation of the invention can process free of dust and cleanly with no problems.
要戴上干净无尘的手套或手指套来防止皮肤油脂污染倍增器的核心或是安装表面。
Clean, powder-free gloves or finger cots should be worn to prevent the transfer of skin oils to critical or mounting surfaces of the multiplier.
在完全密封、无尘的管道内，将精细分类、易流动的材料从横向进给点输送到卸载点。
It is designed to transfer finely divided, flowable bulk materials from infeed points to discharge points through a totally enclosed, dust tight pipeline.
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